Hamartoma classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]

Overview

Hamartomas may be classified into different types based on their location, such as; lung (most common), heart, hypothalamus, kidneys, or spleen. Other classifications can consider lesion class, dividing hamartomas into 4 different categories, such as; Bone-forming, cartilage-forming, fiber-forming and benign non–matrix-forming.

Classification

Lesion class

Based on the lesion class, hamartomas can be classified into the following types:

• Bone-forming tumors

• Cartilage-forming tumors

• Fiber-forming tumors
  • Nonossifying fibroma
  • Fibrous dysplasia
  • Mazabraud syndrome

• Benign non–matrix-forming tumors